AS12571 — INCAS-AS Krefeld, Germany

AS12571 announces 2 IPv4 prefixes covering 9,216 addresses and 1 IPv6 prefixes.

About this network

Two allocations twenty years apart, one from before the address space ran out and one from after.

What it's used for

• Corporate connectivity from Krefeld. 9,216 addresses in two IPv4 prefixes, one IPv6 prefix, and 20 observed BGP neighbours.

Notable

• 212.76.192.0/19 is netname DE-INCAS-990426; 45.128.100.0/22 is DE-INCAS-20190711.
• The IPv6 announcement is 2a00:1d48::/32.
• The AS handle carries a location rather than a description: INCAS-AS Krefeld, Germany.
• Six sampled addresses were queried and none returned a reverse name.

Interesting

• The gap between the two netname dates is twenty years and three months, and the two blocks come from different worlds. A /19 out of 212.0.0.0/8 in April 1999 was a request granted from a registry with space to give. A /22 out of 45.0.0.0/8 in July 2019 came from the waiting list or the transfer market, and a /22 is the largest a European network can normally get at all now.
• Eight thousand of the nine thousand addresses here arrived in the first transaction. The second is a rounding error by comparison, which is the shape of almost every long-lived European network's address history.
• Twenty neighbours is a lot of peering for a company where none of the sampled addresses answered with a name. The network is well connected outward and unadvertised inward.

This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy.

Announced prefixes

• 45.128.100.0/22
• 212.76.192.0/19
• 2a00:1d48::/32

Upstream networks

• AS24961 WIIT AG
• AS6939 Hurricane Electric LLC
• AS24482 SG.GS
• AS57463 NetIX Communications JSC
• AS34800 Securebit AG
• AS58057 Securebit AG
• AS56662 Marcin Gondek

Adjacent networks

• AS24961 WIIT AG
• AS6939 Hurricane Electric LLC
• AS24482 SG.GS
• AS58057 Securebit AG
• AS34800 Securebit AG
• AS57463 NetIX Communications JSC
• AS56662 Marcin Gondek

Internet exchanges

• DE-CIX Dusseldorf — Düsseldorf, Germany
• DE-CIX Munich — Munich, Germany
• DE-CIX Hamburg — Hamburg, Germany